VDV Grounding & Bonding

Question 1

What does TMGB stand for in telecommunications infrastructure?

Accepted Answer

Telecommunications Main Grounding Busbar

Answer

Terminal Module Ground Bus

Answer

Telecommunications Multipoint Ground Block

Answer

Termination Module Grounding Busbar

Question 2

Which standard governs telecommunications bonding and grounding in commercial buildings in the United States?

Accepted Answer

ANSI/J-STD-607

Answer

ANSI/TIA-568

Answer

ANSI/TIA-606

Answer

IEEE 802.3

Question 3

What is the primary purpose of a Telecommunications Bonding Backbone (TBB)?

Accepted Answer

To interconnect all telecommunications grounding busbars in a building

Answer

To carry data signals between floors

Answer

To provide a path for AC power distribution

Answer

To connect fiber optic cables between equipment rooms

Question 4

What is the minimum conductor size specified by ANSI/J-STD-607 for a Telecommunications Bonding Backbone (TBB)?

Accepted Answer

6 AWG

Answer

2 AWG

Answer

1/0 AWG

Answer

4 AWG

Question 5

Where is the TMGB typically located in a building?

Accepted Answer

In the main telecommunications room or entrance facility

Answer

On the roof near antenna installations

Answer

Adjacent to the main electrical panel only

Answer

In each telecommunications closet on every floor

Question 6

What color insulation is specified by ANSI/J-STD-607 for telecommunications bonding conductors?

Accepted Answer

Green

Answer

Black

Answer

Orange

Answer

White

Question 7

What is a Telecommunications Grounding Busbar (TGB)?

Accepted Answer

A grounding reference point located in each telecommunications room or closet

Answer

The primary building ground electrode

Answer

A conductor that connects equipment to earth ground

Answer

A metallic raceway used to carry grounding conductors